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JCL Parameters....


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PrasadV

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Joined: 21 Mar 2004
Posts: 8
Location: Chennai

PostPosted: Sat Apr 03, 2004 3:08 pm
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Hi gurus(JCL),

1. What does & in jcl refer to?



2. How to Assign a value to a parameter in jcl?

Assign or Initialize or set or something else?
pls. let me know. icon_sad.gif
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bluebird

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Joined: 03 Feb 2004
Posts: 127

PostPosted: Mon Apr 05, 2004 4:56 pm
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hello,

1 I don't understand the question

2 it depends on how the program receives parameters.
here is an example with pgm SDSF (IBM standard spool and system
display utility) :
Code:

//STEP1    EXEC PGM=SDSF,PARM='++60,236'


basically, you use parm parameter followed by the quoted values ('').
U need to know the format of the parm from the utility documention

but Some programs receive parm thru DD statement sysin.

hope it clarifies a bit
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sandip_datta

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Joined: 02 Dec 2003
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Location: Tokyo, Japan

PostPosted: Tue Apr 06, 2004 3:41 pm
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"&" generally refers to temporary dataset in JCL.
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bluebird

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Joined: 03 Feb 2004
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PostPosted: Tue Apr 06, 2004 7:50 pm
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thank you sandip...

now I understand question...
but & is actually for parameter either SYS (SYSUID and so on) or in a procedure ...
I suppose your jcl was a procedure and the name prefixed with & (ampersand) is an overridable name meaning it can be replaced by a value on the call of procedure.

temporary dataset are actually prefixed by &&
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sandip_datta

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PostPosted: Thu Apr 08, 2004 1:41 pm
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Yes Bluebird...you are right...It's my mistake...
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mmwife

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Joined: 30 May 2003
Posts: 1592

PostPosted: Fri Apr 09, 2004 12:43 am
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Sandip & Bluebird,

Actually, you're both correct. An & can denote either a symbolic parameter, a system parameter or a temporary dataset. If the & appears at the beginning of the DSN param (e.g. DSN=&acbd) and there is no &abcd referenced in the proc stmt and it doesn't appear in the proc exec stmt and it isn't a system param, the reference (e.g. &abc) will be assumed to be a temp dataset.

Of course && is the preferred form for temp datasets, but you will sometimes see a single & used for a temp ds.

Regards, Jack.
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sandip_datta

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PostPosted: Fri Apr 09, 2004 11:30 am
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Thanks Jack for sharing your valuable knowledge.

Best Regards,
Sandip.
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